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ATMEGA328P-PU with Arduino Bootloader - Uno

3.8 out of 5 stars 94 customer reviews
| 6 answered questions

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  • The heart and sole of your next robot!
  • The perfect chip to revive or upgrade your Arduino (Uno only)
  • Can be used as an AVR Microcontroller, or for an Arduino Uno
  • 20 MHz 28 Pin Dip with 32KB Flash, and 2KB Random Access Memory
  • 6 Analog/Digital Ports, 6 Basic Digital Ports, 6 PWM, and 1 Serial bus (Tx & Rx)
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Frequently Bought Together

  • ATMEGA328P-PU with Arduino Bootloader - Uno
  • +
  • 50 Pcs 16.000MHz AT49S 20PF DIP Quartz Crystal Oscillator
  • +
  • 17 Pcs x 28 Pin DIP IC Sockets Adaptor Solder Type Socket
Total price: $4.51
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Product Description

So if you are looking at this product you probably fried your Arduino Uno. Don't feel bad, it happens to the best of us. We have taken the time to put the Uno bootloader on these bad guys, so if you need to replace or upgrade your chip it will be a snap! Of course don't forget you don't actually need an Arduino to use this chip. This is a standard ATMEGA328 AVR compatible chip.

Product Information

Technical Details

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Brand Name Virtuabotix
Item model number Uno
Item Weight 0.3 ounces
Product Dimensions 2.5 x 1.5 x 0.5 inches

Additional Information

ASIN B007SH0D0A
Customer Reviews
3.8 out of 5 stars 94 customer reviews

3.8 out of 5 stars
Best Sellers Rank #5,669 in Computers & Accessories > Computer Components
Shipping Weight 0.3 ounces (View shipping rates and policies)
Date First Available February 6, 2012

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
After purchasing many components from Virtuabotix, I recently had the opportunity to know this company a little better.

I purchased a couple of these ATMEGA328-PU and I was in the process of building my first Bareduino328 Plus, but the voltage regulators that I had purchased somewhere else were faulty (they overheated when connected to a 9v battery and produced virtually no output, almost zero volts). I sent an email to Virtuabotix to inquire about the best match for the voltage regulator that they used in their demos, and within minutes Joseph Dattilo (CEO of Virtuabotix) replied with a much better answer than I was expecting: he confirmed that the model I indicated should work, but also mentioned that he could make it available on their site just to help me with my project. Within minutes, they had the perfect voltage regulator available, and for an excellent price too.

It is not very common to receive courteous and effective assistance these days, but it is even less common to experience this kind of niceness and competency at once in a single person and company. To me, it is almost more important than the product itself.

BTW: To date, I have purchase the following products from Virtuabotix, and they all receive 5 stars from me. Their products are very cheap, but of excellent quality too!

Virtuabotix Two SG90 9 Gram Micro-servos
Virtuabotix MMA7361 Three Axis Accelerometer Module
...Read more ›
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Since i'm a computer programmer, my electrical skills are limited to the basic understandings of capacitors, current, resistors, ohms and amps. Thus when I perform calculations, I often fudge the math and cross my fingers. Unfortunately time after time i've busted a many Arduino. If you've been a victim of an Arduino popping and then allowing the magic vapors escape thru the crack of the ATMEGA chip, then save yourself the money and avoid SMD (surface mounted) Arduino configurations. Always setup your prototypes on a board that let's you swap out the chip. It'll cost you way less in the long run and keeps your from having to put a halt on your projects due to a damaged Arduino. The fact that these chips are also preloaded with the firmware is a blessing, as even for a skilled programmer this task can be a pain in the tucas.
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By Carl on November 23, 2014
Verified Purchase
Edit: Ok, I'll give these another star because they do work... once you install a bootloader. Fired up Optiloader and successfully burned them. Now I can upload "Blink" and whatever other sketches I want with no trouble. So, the chips themselves work, but as far as having a bootloader "preinstalled" they're a bust.

Original review:

Order three, received three, but none of them seem to work.

The Arduino Uno is recognized in the device manager, but the IDE cannot communicate with the board with these chips installed. The RX light flashes twice when attempting to burn a sketch, and then it does nothing. The reset button does not work, or produce any noticeable effect, either.

The chip is installed the correct direction, the board mode is set to Uno, and the serial port is correct. Everything works if I remove the new chip and plug the original chip back in. They are the same part number, ATMega328P-PU, so there shouldn't be any problem, assuming the bootloader on these chips is working correctly.

After a bit of troubleshooting, I suspect the bootloader is either non-functional or nonexistent on these chips. I'll give burning a bootloader a try before I pronounce the chips DOA, of course, but having to burn a bootloader kind of defeats the whole purpose of buying them with a bootloader "installed."
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Verified Purchase
Received the item promptly and popped it in my Arduino Uno to replace a malfunctioning chip. It's working great! It's a good price, so I may order some more of these in the future.
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I bought it on Virtuabotix, the delivery was fast, and It came with a pinout refference sheet (and the arduino pins equivalence).

This atmega replaces the whole arduino, so is great for making your project deffinitive on a board. the only extra things you need is the quartz crystal and a 5v power source.

Remember that this atmega has uno bootloader, so if you use it on a duemilanove you`ll have to select arduino uno as your board for uploading your sketches.

One last tip, remember to buy 28 pin sockets, so it's a lot easier to unmount if you need to.
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By Stephen on August 4, 2013
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The product came as depicted. The customer service is amazing; within days of receiving my Bootloaders the customer service department had contacted me to checkup on the product, client satisfaction, and additional assistance (if needed) to getting the product up and running. That is a first in customer service experience for me and felt it showed enthusiasm to providing not only good merchandise but quality of service rarely seen these days.
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Verified Purchase
I ordered these because I did not want to deal with the hassle of boot loading, however they do not appear to have arrived boot loaded. I dropped this in directly to my Uno and was not able to upload blink. I put back in the original chip and everything worked fine. I am going to attempt to bootload these to try to salvage something useful.

Other recent reviewers seem to have the same problem. If you are thinking of buying these, I would recommend against it.

UPDATE:
I was able to successfully bootload these and got them working, confirming that they did not come boot loaded. I followed the following tutorial:

http://3g1l.com/blog-burn-bootloader-blank-atmega328atmega328p-arduino-uno

I did have to use the oscillator which I believe means someone attempted to bootload them before.
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